WKP PFS – Geotechnical Section Approved by: Approval Date: TBA OceanaGold PEX-000-PLN-046-A Page 16 of 22 Figure 13: Stope footwall design chart Figure 13, the design chart for stope footwall, shows that both the 1st quartile and 2nd quartile N’ plot in the “stable zone” for hydraulic radii of 4.5. The 2nd quartile N’ remains in the “stable zone” for hydraulic radii up to 6.5.
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